inarg: needboreplot_2015070812_0178_0196_0157_0224_001_014.
 today2: 20150709
 today3: 20150710
 member:            1
 today: 20150708
 whichrun: 12
 timestring: 2015-07-09_02:00:00
 enssizein:            1  001
 x1,y1:          178         196
 x2,y2:          157         224
 /scratch/01242/tg805225/pecan20150708/wrfrun001/wrfout_d01_2015-07-09_02:00:00
 cold pool i,j:          178         196
 cold pool lat,lon:    37.97900      -98.03571    
 ambient i,j:          157         224
 ambient lat,lon:    38.94825      -99.06232    
input of propagation direction done in command line.
ho has not been defined by the user, will be calculated by tools.
properties of density current not set by user, will be calclated using other methods.
density of ambient air is larger than the density of cold air.  Check.